The two panes aren’t different slices in time. They’re just two pictures, side-by-side.
The roof is a different color, that’s it. No temporal change. They’re just different photos.
No obscuring step, just a couple of blind deck maintainers. 
Change implies a before-and-after state, inherently embedding a time component. It has to be temporal in some sense because a change has occurred- the process of changing colors. Regardless the temporality doesnt really matter because a change must have occurred outside your vision between these two panes as in you didn’t see the illustrator paint it a different color for example. My main point is that these panes aren’t a contradiction to this concept of it occurring outside your vision and if anything support it. Thats again the limitation of these types of examples is that the obscured step is ENTIRELY obscured which makes this concept less apparent.
Also good catch didn’t see that lmao.
I remain unconvinced by the argument, tbh
The suggested edit is quite a change, verbose, and I think presumes a temporality that is not definitionally part of the inherent concept
But, an hour of bandying is a lot for any single suggestion. I think we could go in circles for infinitely long, no question
I agree its a lot in the text section but I think this merits inclusion in the extra section at the very least or else we have a definition of change blindness that is incomplete and cant be differentiated from inattentional blindness.
Change blindness involves being unable to identify the difference between two visual scenes. However it is not because you weren’t focused on that aspect of the visual scene when the change occured or else you’re describing inattentional blindness. Therefore, the visual change occurs in some manor that you could not have seen it. This definition mirrors the definition and examples provided by KA. Even if you reject the temporality idea, this doesn’t influence your point:
The panes actually support this claim because you didn’t see the change occur between them and then struggle to identify the difference. Either way I agree too much time on this.